World Checklist of Selected Plant Families (WCSP)

Alnus japonica var. rufa Nakai, Bot. Mag. (Tokyo) 33: 45 (1919).

This name is a synonym.

Accepted Name:	Alnus japonica (Thunb.) Steud., Nomencl. Bot., ed. 2, 1: 55 (1840).
Family:	Betulaceae
Original Compiler:	R.Govaerts